The average amount of money that people spend at Don Mcalds fast food place is $7.5200 with a standard deviation of $1.9400. 12 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. What is the distribution of XX? XX ~ N(,) What is the distribution of ¯xx¯? ¯xx¯ ~ N(,) What is the distribution of ∑x∑x? ∑x∑x ~ N(,) What is the probability that one randomly selected customer will spend less than $7.0400?

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